PLTW Vocabulary: Matter and Properties, Activity 3 and Project

Maya, Emma, and Priya are having a debate. Maya thinks a mixture is a substance that contains three or more substances. Emma believes it's a substance that contains two or more substances that are not chemically combined. Priya says it's a substance that contains two or more substances that are chemically combined. Who is correct?

• Maya

• Emma

• Priya

• None of them

Lily, James, and Ethan were having a debate about chemical reactions. Lily said, 'A chemical reaction is a process in which one substance becomes two substances.' James disagreed and said, 'No, it's a process in which one or more substances remain the same.' Ethan, however, had a different opinion. He said, 'Actually, it's a process in which one or more substances changes to become a different substance altogether.' Who do you think is correct?

• Lily: A process in which one substance becomes two substances

• James: A process in which one or more substances remain the same

• Ethan: A process in which one or more substances changes to become a different substance altogether

• None of them

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Imagine Sophia, Oliver, and Aiden are having a heated debate about the conservation of mass. Sophia says it's the idea that matter can only be transformed into light. Oliver thinks it's the idea that matter can be created and destroyed. Aiden, however, believes it's the idea that matter cannot be created nor destroyed. Who do you think is correct?

• Sophia: The idea that matter can only be transformed into light

• Oliver: The idea that matter can be created and destroyed

• Aiden: The idea that matter cannot be created nor destroyed

• None of them

Tags

NGSS.MS-PS1-5

Aria, Ethan, and Kai are on a quest to understand the world around them. They stumble upon the term 'scientific inquiry process'. What could it possibly mean?

• A magical spell to make new scientific discoveries

• A step by step guidebook that scientists use to unravel the mysteries of the universe

• A secret ritual to prove existing scientific theories

• A creative method to craft new scientific theories

Tags

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

Elijah, Daniel, and Abigail are in a science class. They are learning about materials and their properties. They came across a term 'tensile strength'. Can you help them understand what tensile strength is?

• The property of a material to be compressed without breaking

• The property of a material to be stretched or pulled without breaking

• The property of a material to be heated without breaking

• The property of a material to be bent without breaking

Noah, David, and Benjamin are having a debate. Noah thinks a mechanical engineer designs and builds computers, David thinks they design and build bridges, and Benjamin thinks they design, build, and use machines. Who is correct?

• Noah: Designs and builds computers

• David: Designs and builds bridges

• Benjamin: Designs, builds, and uses machines

• None of them

Imagine Henry, Ethan, and Michael are playing with a sponge ball. They are curious about the ball's behavior when they squeeze it. Can you help them understand what is compressibility?

• The property of a material to expand with force or pressure

• The property of a material to get smaller with force or pressure

• The property of a material to remain the same size with force or pressure

• The property of a material to change color with force or pressure

Tags

NGSS.MS-PS2-2

Imagine Michael, Sophia, and Charlotte are superheroes with different powers. Michael can melt anything, Sophia can bend anything, and Charlotte is incredibly hard and unbreakable. If we compare these powers to properties of materials, which one would represent hardness?

• The power of Michael who can easily melt or vaporize anything

• The power of Sophia who can easily bend or break anything

• The power of Charlotte who is firm and solid, not easy to bend or break

• A hypothetical power where a superhero is soft and flexible

Kai, Isla, and Evelyn are building a bridge for their science project. They are discussing the best material to use. Kai suggests they need a material with high fatigue strength. Can you help them understand what fatigue strength is?

• The property of a material to take repeated weight or force without heating up

• The property of a material to take repeated weight or force without changing

• The property of a material to take repeated weight or force before breaking

• The property of a material to take repeated weight or force without wearing out

Imagine you're at a party with Abigail, Harper, and Oliver. Suddenly, Oliver receives a message from a manufacturer. What could be a 'recall' in this context?

• A request from the manufacturer to Oliver to return a product after the discovery of quality issues

• A request from the manufacturer to Oliver to return a product after the discovery of safety issues that might harm the consumer

• A request from the manufacturer to Oliver to return a product after the discovery of new features

• A request from the manufacturer to Oliver to return a product after the discovery of lower prices